Remove unused or useless SDL_Rects from Graphics

These were bfont_rect, bg_rect, foot_rect, and images_rect.

bg_rect was only used once to draw the ghost buffer in the editor, but
that was only because Ally didn't know you could just pass NULL in, cuz
the ghost buffer is the same size as the backbuffer.

desktop_version/src/Editor.cpp

@@ -929,7 +929,7 @@ void editorrender(void)
                 BlitSurfaceColoured(graphics.sprites[ed.ghosts[i].frame],NULL, graphics.ghostbuffer, &drawRect, graphics.ct);
             }
         }
-        SDL_BlitSurface(graphics.ghostbuffer, NULL, graphics.backBuffer, &graphics.bg_rect);
+        SDL_BlitSurface(graphics.ghostbuffer, NULL, graphics.backBuffer, NULL);
     }
 
     //Draw Cursor

desktop_version/src/Graphics.cpp

@@ -19,8 +19,6 @@ void Graphics::init(void)
     flipmode = false;
     setRect(tiles_rect, 0,0,8,8);
     setRect(sprites_rect, 0,0,32,32);
-    setRect(bfont_rect, 0,0,8,8);
-    setRect(bg_rect, 0,0,320,240);
     setRect(footerrect, 0, 230, 320, 10);
     setRect(prect, 0, 0, 4, 4);
     setRect(line_rect, 0,0,0,0);
@@ -103,11 +101,9 @@ void Graphics::init(void)
     // initialize everything else to zero
     backBuffer = NULL;
     ct = colourTransform();
-    foot_rect = SDL_Rect();
     foregrounddrawn = false;
     foregroundBuffer = NULL;
     backgrounddrawn = false;
-    images_rect = SDL_Rect();
     m = 0;
     linedelay = 0;
     menubuffer = NULL;

desktop_version/src/Graphics.h

@@ -268,16 +268,12 @@ public:
     TowerBG towerbg;
     TowerBG titlebg;
 
-    SDL_Rect bfont_rect;
     SDL_Rect tiles_rect;
     SDL_Rect sprites_rect;
-    SDL_Rect images_rect;
-    SDL_Rect bg_rect;
     SDL_Rect line_rect;
     SDL_Rect tele_rect;
     SDL_Rect towerbuffer_rect;
 
-    SDL_Rect foot_rect;
     SDL_Rect prect;
     SDL_Rect footerrect;
     SDL_Surface* footerbuffer;